Finding the Fourth Proportional to 10,862,617.29, 14,985,232.09 and 7,916,117.28
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Solution
The fourth proportional to 10,862,617.29, 14,985,232.09 and 7,916,117.28 is: 10,920,467.10
Step by Step Solution
- Step 1: Write the proportion equation
10,862,617.29 : 14,985,232.09 = 7,916,117.28 : x - Step 2: Convert to fraction form
10,862,617.29/14,985,232.09 = 7,916,117.28/x - Step 3: Cross multiply
10,862,617.29x = 14,985,232.09 × 7,916,117.28 - Step 4: Simplify right side
10,862,617.29x = 118,624,854,692,459.52 - Step 5: Solve for x
x = 118,624,854,692,459.52/10,862,617.29 - Step 6: Final answer
x = 10,920,467.10
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.